Interesting. I ran it on a few charts and could not get it to happen. If this happens on backfilled charts, tell me what the backfill source is, what symbols and what frequencies...
If it happens on collected data, you'd have to send us the data file. To do that, email our support email and we will get it thru.

Yes, but you would have to do it with the Advanced paintbars/scans.
Create a FIFOQueue of length x, add the current bar's range to it, and take the Average of it.
See this thread for an example of how FIFOQueue is used:

Rob, as I already mentioned, when we see bugs, we fix them. When someone reports a bug and we can see what he means, we fix them. We definitely appreciate bug reports and have stated that numerous times.
Saying "P&F is screwed up" is not enough. Tell me, specifically, how it is screwed up. Preferably in a language I understand and with snapshots. I definitely don't need your proprietary trading secrets. But give me a snapshot of a P&F chart (remove all your proprietary trading stuff from it) and tell me what you see in it that is wrong.

Rob, just like we did with QT, we try to fix the errors that are reported. We are the same exact people that did QT, and MT uses much better and more modern programming techniques than QT did, because software development tools and techniques definitely improved in the last decade and a half.
To your concerns - it is a bit overwhelming when you just list all the bugs together. In general:
* Is all your writing referring to P&F charts only?
* Some of what you write (" AAPL did not drop to $173.8 during the "day" session of 3/6/18") I cannot see on my chart. It would help if you posted your chart snapshot or emailed it to us so we could compare what you see with what we see.
* One example: you write that AAPL did not open at 174.9 on 3/7/2018. No, it didn't. It opened at 174.94. Which you would see on a candle chart. But on a P&F chart with a box size of 0.1, it would show the open of 174.9. That is the nature of P&F charting and how it should be.
* "Days" refers to the time period from rollover to rollover, or, in AAPL case, from midnight to midnight EST, if you choose the right timeframe for the chart. On MT charts, you see a double solid vertical line that separates days on intraday charts.
* If you can, please email our support email with each bug, and, if possible, illustrate it with snapshots.
Thanks
Mike

Candles that close higher than open are green in MT and that close lower than open are red. In your example, they are green or red, hollow or solid. So if the color in MT is replaced by being solid or hollow, what does the color of the candle in your pic signify?

I bet this is the same problem as with your previous mentions of Bollinger Bands and SMA.
Basically, it is a question of what is a more representative method - ignoring no-volume gaps as if they don't exist or treating them as no-volume candles where O=H=L=C=previous candle's Close...

The hump is there not because of SMA but, I presume, because the StDev jumped.
SMA in MT, as I pointed out above, takes no-volume gaps to have the same value as the previous candle for the purpose of calculating the period's average.
So if you have (with - being the no-volume candle)
10 10 12 - - 10 12 - the SMA(5) would be (12+10+12+12+12)/5 = 11.6
while if the -s were skipped, it would be (12+10+12+10+10)/5 = 10.8
I think not skipping the empties presents a more representative picture of the average for the time period.

MT was basically counting 0 vol periods as candles at the close of previous with-volume candles, for the purpose of calculating the standard deviation (as well as for the purpose of calculating the central MA).
The central-MA calculation is fine for that. But apparently your other sources do not do that for the StDev calculation. I guess that's another way to look at it although I can see merit in our method as well.
I changed it in the calc. Email jerry to get the new ver that has that.

Current formula for the size of the box is half the candle width or 9, whichever is smaller, with a min of 2. Any thickness you specify would add to that. I could add -1 - would that do it?
You could also try to make the color of the dots dimmer so they do not stand out as much...

Note that even though Depth Charts were pioneered by the crypto exchanges, they are available for any L2 feed.
They are not as detailed or extensive on stocks L2 feeds because those only have a limited number of entries on either side... But take a look.

In a simple rule, just compare EMA(13) one candle ago to EMA(13) on current candle. If the one candle ago is less than current, it is moving up.
If you want to check a local minimum, you can check if the value 2 candles ago was higher than 1 candle ago, and the value 1 candle ago is lower than current.